Saturday morning near Prospect Park, the Long Meadow is already filling and the streets around it smell of cut grass. Lawn Care Brooklyn adds to that smell block by block through Windsor Terrace and Kensington, mowing, edging, running the string trimmer down the fence lines, blowing the walks clean. Straight stripes across even a small yard are a plain kind of beauty and worth the extra pass. Mulch, weeding and overseeding fill the rest of the calendar, with one heavy clearing once the leaves commit. The work ends where it should: a gate latched, a lawn that looks looked-after.